Truck wheelr



A M. LEONI. TRUCK WHEEL.

APPLICATION HLED MAY 3. I921.

Reissued May 30,1922

ATTORNEY UNITED STATES PATENT OFFICE.

ALFONSO M, LEONI, 0F BALTIMORE. MARYLAND. ASSIGNOR, BY MESNE ASSIGNMENTS, TO THE DAYTON STEEL FOUNDRY COMPANY, OF DAYTON, OHIO.

TRUCK WHEEL:

Original No; 1,201,597, dated October 17, 1916, Serial N0. 88,393, filed April 1, 1915 reissue filed May '3, 1921.

ticularly to those of a heavy type such as.

employed on trucks.

The invention is particularly useful when applied to the construction of integral cast wheels.

principal object of the invention is to produce a wheel of great strength and resilicncy, and having improved features of construction at the junction points of the spokes and rim tending to prevent the formation of cracks and the splltting of the rim.

Another object is to give the wheel an (1-, vantageous form of rim effectively correlated to the features of construction of the spokes to adequately support a rim for a tire. j

The invention consists in the general combination of parts and in the features described in the following specification while the broad scope of the invention is set forth in the appended claims.

In the drawing. Figure l is a partial side elevation and section of a wheel embodying my inyention. Fig. :2 is a plan or face view of the wheel partially broken away to show the wheel partially in section. Fig. 3 is an enlarged section in the plane of the wheel showing a detail of a modilied embodiment tapered tubular form and integrally con nccted with the-hub through the side walls 3 of the spokes. In order to give the wheel increasedresilieucy and lightness at the hub I prefer to leave the front and rear walls -l and a) of the spokes unattached directly to the hub but Specification of Reissued Letters Patent. I{. i5su9d lIay 30, 1922;

Application for Serial No. 466,597.

prefer to connect the rear wall of each spoke with the forward wall of the adjacent spoke, by an integral curved wall 6 preferably struck on a relatively great radius.

The riln of the wheel preferably constructed sri' as to absorb shocks and so as to impart them resiliently to the spokes. For this purpose I prefer to form the rim with an nmer circumferential wall T which is integrally united with the forward and rear walls of the spokes by extending these walls of the spokes in broadly sweeping curves 8 which merge into the circumferential wall. For the same purpose I also prefer to ive the rim of the wheel a hollow.

form, and in order to do this I prefer to form the rim with'integral side walls 1C which lie in the plane of the wheel and project away from the axis of the wheel.

In order to carry the tire 11 I prefer to provide the walls 10 with separated exten- .sions or inwardprojections 12 which form seats for and constitute means for attaching the tire. and preferably these projections 12 are in'the. form of continuous flanges.

In order to tie the flanges 12 together I prefer to provide the rim. intermediate of the spokes. with webs l3 and 1*. These webs if desired may be of a depth substantially equal to the depth of the rim, so that the outer edge of the web is flush with the outer faces of the flanges. but portions of the webs as at 18"" may be depressed below the outer faces of the flanges. To give these intermediate parts of "the rim greater strength. 1 also may extend the longitudinal webs as at 15. which are preferably located in the central plane of the wheel. and which intersect the transverse webs to form a unit web.

This last mentioned type of webs preferably has a portion it of substantially equal depth with the rim. and their edges 1(') curve away toward and merge into the forward and rear walls of the spokes. thus having their major portions depressed between the outer faces of the flanges. Thus some of the webs may have portionsof the web portions flush with the outer surface of the rim and others may haye port-ions depressed below the outer surface of the rim.

If it is desired to strengthei'i the spokes the longitudinal webs may have long tapering extensions 17 (See Fig. 1) which run 111 on the spokes and merge or die away on the inner faces of the forward and rear Walls of thespokes 1 i i If it is desired to form more of a seat for the tire, I may form the outer edge of each transverse web "with a flange such as at 18 (see Fig; 4), and this of course increases the strength of; the wheel locally. The longitudinal Webs in this case may be short and of such a form as indicated at 18* (see Fig. 4.)

One of. the functions of the transverse webs is to prevent local lateral forces in the wheel from tending to split apartthe sides of the wheel. at the rim. Such forces may be developed while the wheel is passing on a curve or where the roadway inclines laterally with respect to a horizontal. line. The

transverse webs also operate beneficially by increasing the connected. mass which of oourse tends to absorb a shock.

The small extent of the longitudinal ribs that is of fullest depth (see Fig. 5) advantageous because it leaves a greater tent of the ribs free to vibrate and in that way absorb shocks; The wheel is mud and dust proof as there are no projeeti'ng surfaces to catch material.

i It is understood that the embodiment of he invention forth herein, only one of the many embodiments the invention may take, and I do not wish to be limited in the practice of my invention nor in my claims to the particular embodiment set forth. What I claim is:

As a new article of rnanufaotiire an in t al metal wheel having a hub, a, plurality o. substantially tubular spokes disposed radially from said h'ub. a .rim having an inner rirolnnferential wall, the forward and rear walls of said spokes extended inbroa'dly sweeping curves merging into the said cir- (:lnnferential wall of said rim, said rim having integral side walls extending substantially in the plane of the, wheel, l nd having se 'iarated webs projecting inwardly frbni the outer edgeslol the side walls of said rim for supporting a rim on said wheel.

As a new article of manufacture an integral metal wheel having; a bid), a pin ality of substantially tubularspolms dis posed radially from said huh, a rim having an inner oirtuinferential Wall. the forward and rear walls of said spokesesteinlii ti in broadly swee 'i-ing curves merging into the said circumferential wall of said rim, said rim having integral side walls extending substantially'in the plane of the wheel, united by integral transverse webs intermediate said spokes and having separated fiKttIlSiuIlS pro jeeting inwardly from the outer edges of the side walls of said .riin for supporting: a tire and rim on said wheel.

713M a new article of manufacturean integral metal wheel lniving a substantially fleylindrieal.hub, a pin ality of substantially tubular spokes t lisposed radially from said hu'bt a rim. the forward and rear-walls of said spokes extended in sweeping (THEMES merging into the wall of said rim, the said forward and rear walls of said spokes at i the inner ends of the spokes eonneeted by an integral curved wall. said curved wall unattached directly tosaid hub. the side walls of said spokes connected with both ends of said huh. I i

4.. As a new article of manufacture an integral metal wheel having; a hub, a plurality of enlistantiall tubular spokes disposed radially from said hub, a rim having an inner circmnferential wall, the forward and rear walls of said spokes extended in sweeping curves merging into the said circumferential wall of said rim. said rim haw ing integral side walls extending substantially in the plane of the wheel. and longitudinal webs lying; substantially in the plane of the wheel and extending circumferentially along the rim between the side walls thereof, said webs terminating in broadly sweeping curves merging into the forward and rear walls of said spokes.

5. As a new article of n'ninufaoture an integral metal wheel having a hub, a plarality of substantially tubular spokes disposed radially from said hub, a rim having an inner circumferential wall. the forward and rear walls of said spokes extended in sweeping" caries il'ierging-ini'o the said eireuniferential wall of said rinn said rim ha \F ring integral side w alls extending substan tially in the plane of the wheeloand longii tudinal webs lying substantially in the plane of the wheel and extending ,-ircl.imferentially along the rim between the side walls thereof, said webs terminating in broadly sweeping curves merging into the l i'JI'VVtHTl and rear walls of said spokes said rim having inte oral inwardly ntojecting;flanges. and transverse webs intersecting said longitudinal websland ronnectin ethe said side walls of said rim some of the webs baring: portions flush with the outer snrfawv of the rim and others hating portions depressed below the outer sn'rface of the rim.

' fl. is ax new article of mai'infactnri: an integral i'netal wheel having a imb. a plu may of substantially tubular radially dis-- posed spokes. a rim ha vino; an inner rironn1- ferential wall. the forwanl and rear walls of said spokes extended in sweeping curves merging into the said cireninferentia] wall, said rim having side walld extending away from the axis beyoml the oirminilerential wallgsaid wheel being open between said side walls throughout substantially the entire (Tllt'lllll'flklti'llQ thereof except for webs tying the rim walls to one another.

7. As a. new an die of mariafactorsv an integral metal wheel havingra hob, a pin rality of substantially tabular spokes, a rini Ell] having an inner circumferential wall, and outwardly extending sidewalls at the edges of circumferential wall, the forward and rear walls of said spokes extended in sweeping curves merging into the said cir-' cumferential wall. the side Walls of said spokes extended in curves merging into the said circumferential,wall,'said wheel being' open between said side walls throughout sub stantially the entire circumference thereof.

8. As a new-article of manufacture, a metal wheel having a hub, alplurality of spokes and a rimfsaid rim having. its outer 9. As a new article of manufacture, a-

metal wheel having a hub, a plurality of spokes and a rim, said rim having its outer wall opened throughout and the flanges of together by webs, the webs said rim tied being flush with the walls of the-rim at the points of connection and depressed below the surface of the rim between said walls.

10. As a new article of manufacture, a metal wheel having a hub and a rim, tubular spokes connectingsaid hub and rim, said rim having its outer wall"open,throughout andthe flanges of said rim tied together-by webs, some of the webs having portions flush with the outersurface of the rim and-others having portions depressed below the outer surface of the rim. p

11. As a new article of manufacture, a metal-wheel having a hub, and a rim, tubular spokes connecting said hub and rim, and inwardly extending flanges'onsaid rim connected by webs, portions of which are below the surface thereof, said rim having its outer wall open throughout, the webs. being flush with the walls of the rim at the points of connection and depressed below the surface of th rim between said walls.

In testimony whereof I affix my si nature.

ALFONSO M. L 0N1. 

